Lovely, brilliant colours and a view I have so far never seen of Sydney Harbour, and sharpness from front to back. Good. The day looks like it was very enjoyable! The boat adds to the feeling. Only nitpick are the two persons cut at their waistes in the foreground, but your frame HAS to be SOMEWHERE in a wideangle shot like this one, of course!!!

Thank you all for the comments. It's a shame I had to chop up the people in the foreground but I wanted the bright yellow boat in that part of the frame. If I go to Australia again I'll bring a tripod and allow more time for photography so I can get the perfect shot. This picture was taken from the Opera House, by the way.